Thursday 4th September
TODAY WE ARE
LEARNING ABOUT
 What is sound?
TODAY'S
KEY WORDS ARE
  • S__nd
  • V_br_t__n
  • Fr_q__ncy
  • W_v_
  • H_rtz
  • P_tch
  • _sc_ll_sc_p_
  • P__k
  • _mpl_t_d_
  • _n_rgy
    		•

    Memory Anchor:

    YOU WILL SHOW
    YOUR LEARNING BY...
    • Students can describe both the wave and the sound from a oscilloscope trace.

      • Super Challenge:

      Stretch:

      Challenge:

    Key Questions:

    1. How is sound produced?
      • Sound is produced by the vibrations of objects.
    2. What is the frequency of a wave?
      • The frequency of a wave is number of waves in a bit of time.
    3. What unit is frequency measured in?
      • Frequency is measured in hertz (Hz).
    4. What is the relationship between frequency and the sound produced?
      • The higher the frequency of sound, the higher the pitch.
    5. What does a high frequency signal look like on an oscilloscope, compared to a low frequency signal?
      • The closer the peaks on an oscilloscope the higher the frequency of the signal and therefore the wave.
    6. What does a high amplitude signal look like on an oscilloscope, compared to a low amplitude signal?
      • The taller the peaks on an oscilloscope the higher the amplitude of the signal and therefore wave.
    7. What is the relationship between energy and amplitude?
      • The higher the amplitude of the wave, the more Energy in the wave and therefore the louder the sound.